CN102788996B - Resistance-type winter bamboo shoot detector and detection method - Google Patents
Resistance-type winter bamboo shoot detector and detection method Download PDFInfo
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- CN102788996B CN102788996B CN201210237677.8A CN201210237677A CN102788996B CN 102788996 B CN102788996 B CN 102788996B CN 201210237677 A CN201210237677 A CN 201210237677A CN 102788996 B CN102788996 B CN 102788996B
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Abstract
A kind of resistance-type winter bamboo shoot detector, is made up of accumulator DC power-supply circuit (8), stake resistance detection circuit (9), single chip machine controlling circuit (10), digital pipe display circuit (11) and acousto-optic bulletin circuit (12); Also has housing (6), the digitron display screen (1) on housing (6), acoustical generator or illuminator (2), store button (3), display mode control knob (4) and battery main switch (5); Both positive and negative polarity probe (7) is equipped with in housing bottom surface.With the selection through time, weather, forest land and exploration drilling point of the detection method of these winter bamboo shoot detector, the pre-service before exploration drilling and detection excavation four steps realize.This detector has automatically process correlated digital harmony lightshow function, be suitable for working from dawn to dusk, dark time and caliginous bamboo shoot agriculture use; Detection is reliable, avoids disorderly digging making forest land riddled with gaping wounds, the disconnected subterranean stem of pick and dig broken bamboo shoot body, affect the problem of the output of bamboo shoot and bamboo and occur, and it is high, simple to operate to dig bamboo shoot work efficiency, and cost of manufacture is low.
Description
Technical field
The present invention relates to a kind of detector detecting soil resistivity change, the detector specifically whether existed with the detection subsurface winter bamboo shoot of acoustical generator or illuminator and detection method.
Background technology
Winter bamboo shoot are bamboo shoot buds of the subterranean stem lateral bud development of mao bamboon (phyllostachysheterocyclacv.Pubescens), germinate until just display ground for the first time before and after the beginning of spring before and after the beginning of autumn, within this very long period, the not long bamboo shoot of various Shoot bamboo, eating bamboo shoot person, can only with bamboo shoot product as dried bamboo shoots, replace through antiseptic bamboo shoots, taste is not good enough, in the Spring Festival having individual Chinese extremely to value in chance encounter during this period of time, but Que Xiansunzhe road dish on dining table, each and every one is sorry for happiness trencherman.Though winter bamboo shoot now are not unearthed but have grown up to 0.5-1kg size, market is prosperous to be asked, and short people enters mao bamboo woods and looks for and dig winter bamboo shoot.But in boundless and indistinct forest land, non-experienced person is difficult to seek dig and obtains, cause and smash borehole everywhere, underground is disconnected through digging, having a strong impact on the end of spring and the beginning of summer grows by winter bamboo shoot the scurry out shoot of mao bamboo behind bottom surface and the quantity of mao bamboon that grown up to by the shoot of mao bamboo, output is declined comprehensively, and the winter bamboo shoot of digging once in a while is damaged, sell and do not hike, even can not sell.In a word, all the time, be by rule of thumb to excavating of winter bamboo shoot, many persons of staying close with opportunity are, consume labor, consuming time, effect is low, destroy large to mao bamboon and forest land.Through retrieval, do not find to appear on the market to the document announcement of the detector that the winter bamboo shoot of underground detect and product.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of resistance-type winter bamboo shoot detector and detection method.The technical scheme solving the problems of the technologies described above employing is: this resistance-type winter bamboo shoot detector, be made up of circuit part and hardware components, circuit part comprises accumulator DC power-supply circuit, stake resistance detection circuit, single chip machine controlling circuit, digital pipe display circuit and acousto-optic bulletin circuit; Hardware components has housing, the digitron display screen on housing, acoustical generator or illuminator, store button, display mode control knob and battery main switch; Both positive and negative polarity probe is equipped with in housing bottom surface.
Said accumulator is the rechargeable nickel-metal hydride accumulator of 9V, and DC power-supply circuit one tunnel exports 9V voltage and directly connects stake resistance detection circuit, and they are by a 9V accumulator, battery main switch, three groups of mutual resistance R in parallel
1, R
2, R
3positive pole probe is connected successively, then the negative pole probe be connected with battery terminal negative forms; LM7805 Voltage stabilizing module of separately leading up to exports 5V voltage and is connected with single chip machine controlling circuit and digital-scroll technique circuit.
Three positive pole probes of said housing bottom surface are arranged on the summit of an equilateral triangle that the length of side is 10 ~ 15cm respectively, and a negative pole probe is arranged on this leg-of-mutton central point.
The length of described positive pole and negative pole probe is 20 ~ 50cm, except tip, the diameter of probe body or wide and thick be 0.5-1.0cm, on probe body, cover has insulating gel pipe box.
The annexation that described circuit part is mutual is: in accumulator DC power-supply circuit (8), 9v direct-flow storage battery is through IC
15V is exported to single chip machine controlling circuit (10) IC after three-terminal voltage-stabilizing
240,20 pins of single-chip microcomputer, three resistance and three positive pole probe one_to_one corresponding series connection in accumulator DC power-supply circuit (8) and stake resistance detection circuit (9), in parallel mutually again, negative pole probe connects power cathode, and three positive pole probes also connect IC respectively
21,2,3 three pin of single-chip microcomputer, store button TB
1, display mode control knob TB
2meet IC respectively
27,8 two pins, crystal oscillator CR
1two ends meet IC respectively
218,19 two pins, and through electric capacity C
2, C
3ground connection, in single chip machine controlling circuit (10), 5V power supply VCC is through electric capacity C
1with resistance R
4ground connection composition reset circuit, meets IC
2pin 9, IC
221-28 pin meet the IC of digital pipe display circuit (11)
311,7,4,2,1,10,5,3 eight pins, IC
217,29,30,11 4 pins connect Q respectively
1, Q
2, Q
3, Q
4the base stage of four triodes, IC
2pin one 0 meet the triode Q of acousto-optic bulletin circuit (12)
5base stage, Q
5collector connect acoustical generator or illuminator, then ground connection, 5V power supply meets triode Q respectively
1-Q
5emitter, wherein IC
1, IC
2and IC
3chip is respectively three terminal regulator LM7805, enhancement mode 51 single-chip microcomputer STC12C5A60S2 and four seven sections of LED common anode charactrons.
Carry out according to the following steps by the method for this detector detection winter bamboo shoot:
(1) selection of time and weather: be advisable exploration drilling day at the fine day of the early Febuary in annual late November to next year or cloudy day;
(2) selection of bamboo stand and exploration drilling point: select that growing way is more prosperous, forest land that bamboo strain density is larger, avoids the ground on limit, ditch and wet depression, is advisable exploration drilling point in all the other plot;
(3) pre-service before exploration drilling: first exploration drilling point should uproot or shovel examination and dig at a place of target bamboo stand, do not find winter bamboo shoot, then the four point probe of this detector is inserted to entirely buries at this, opening power master switch, first by display mode control knob, observe the electric current microampere value between Article 1 positive pole probe and negative pole probe on digital display screen, after the data stabilization of screen display, press store button, data are just retained in single-chip microcomputer; Press same method again, press display mode control knob and store button successively, retain the electric current microampere value between Article 2 positive pole probe and negative pole probe; After repeating this procedure totally three times, just remain the microampere value between first, second and third three positive pole probes and negative pole probe, pre-service terminates, and pulls up detector;
(4) detection and excavation: detector being moved to other should exploration drilling point again, both positive and negative polarity probe (7) is inserted not in soil entirely, three the microampere values surveyed between three positive pole probes and a negative pole probe for three times are divided again by step (3) same procedure, single-chip microcomputer autostore and comparison, as long as if at least one pair of data is than front storage number large 15-30 μ A in rear storage number, then detector sounding or bright light bulletin, represent in the length range between the four point probe in inserted place have winter bamboo shoot, plane soil excavates and get final product.
The invention has the beneficial effects as follows: these winter bamboo shoot detector, be easy to make and cost of manufacture is low, automatically the advantage such as related data and acousto-optic bulletin can be processed, this method is adopted to find winter bamboo shoot, the bamboo shoot time is looked in saving, and simple to operate being convenient to is promoted, and can not cause disorderly to excavate the subterranean stem caused and dig disconnected, winter bamboo shoot and dig broken, affect the output of bamboo and bamboo shoot, reduce the problem of income.
Accompanying drawing explanation
Fig. 1 is the contour structures schematic diagram of this detector.
Fig. 2 is principle of work block diagram of the present invention.
Fig. 3,4 is respectively the circuit theory diagrams of band sounding of the present invention and illuminator.
Embodiment
The present invention is also described in detail with reference to accompanying drawing below in conjunction with embodiment: with reference to Fig. 1 and Fig. 3,
This resistance-type intelligence buzzing winter bamboo shoot detector, be made up of circuit part and hardware components, circuit part comprises accumulator DC power-supply circuit 8 (being called for short circuit 8), stake resistance detection circuit 9, single chip machine controlling circuit 10, digital pipe display circuit 11 and acousto-optic bulletin circuit 12; Hardware components has housing 6, digitron display screen 1, acoustical generator or the illuminator 2 on housing 6, store button 3, display mode control knob 4 and battery main switch 5; Both positive and negative polarity probe 7 is equipped with in housing bottom surface.
See Fig. 2,3, accumulator adopts the rechargeable nickel-metal hydride accumulator of 9V, DC power-supply circuit 8 one tunnel exports 9V voltage and directly connects stake resistance detection circuit 9, and LM7805 Voltage stabilizing module of separately leading up to exports 5V voltage and is connected with single chip machine controlling circuit 10 and digital-scroll technique circuit 11.DC power-supply circuit 8 is connected with stake resistance detection circuit 9, by the positive pole of a 9V accumulator, a battery main switch 5, three groups of mutual resistance R in parallel
1, R
2, R
3connect successively with positive pole probe, then the negative pole probe be connected with battery terminal negative forms.
Said housing 6 can make of engineering plastics, to insulate with four probes.Three positive pole probes 7 of housing bottom surface are arranged on the summit of an equilateral triangle that the length of side is 10 ~ 15cm respectively, and a negative pole probe 7 is arranged on this leg-of-mutton central point.Article four, probe and housing also can be detachable and are connected.The length of described positive pole and negative pole probe is 20 ~ 50cm, except tip, the diameter of probe body or wide and thick be 0.5-1.0cm, probe body overcoat has glue pipe socket.
The annexation that described circuit part is mutual is: in accumulator DC power-supply circuit (8), 9v direct-flow storage battery is through IC
15V is exported to single chip machine controlling circuit (10) IC after three-terminal voltage-stabilizing
240,20 pins of single-chip microcomputer, three resistance and three positive pole probe one_to_one corresponding series connection in accumulator DC power-supply circuit (8) and stake resistance detection circuit (9), in parallel mutually again, negative pole probe connects power cathode, and three positive pole probes also connect IC respectively
21,2,3 three pin of single-chip microcomputer, store button TB
1, display mode control knob TB
2meet IC respectively
27,8 two pins, crystal oscillator CR
1two ends meet IC respectively
218,19 two pins, and through electric capacity C
2, C
3ground connection, in single chip machine controlling circuit (10), 5V power supply VCC is through electric capacity C
1with resistance R
4ground connection composition reset circuit, meets IC
2pin 9, IC
221-28 pin meet the IC of digital pipe display circuit (11)
311,7,4,2,1,10,5,3 eight pins, IC
217,29,30,11 4 pins connect Q respectively
1, Q
2, Q
3, Q
4the base stage of four triodes, IC
2pin one 0 meet the triode Q of acousto-optic bulletin circuit (12)
5base stage, Q
5collector connect acoustical generator or illuminator, then ground connection, 5V power supply meets triode Q respectively
1-Q
5emitter, wherein IC
1, IC
2and IC
3chip is respectively three terminal regulator LM7805, enhancement mode 51 single-chip microcomputer STC12C5A60S2 and four seven sections of LED common anode charactrons.
Carry out according to the following steps by the method for this detector detection winter bamboo shoot:
(1) selection of time and weather: be advisable exploration drilling day at the fine day of the early Febuary in annual late November to next year or cloudy day;
(2) selection of bamboo stand and exploration drilling point: select that growing way is more prosperous, forest land that bamboo strain density is larger, avoids the ground on limit, ditch and wet depression, is advisable exploration drilling point in all the other plot;
(3) pre-service before exploration drilling: first exploration drilling point should uproot or shovel examination and dig at a place of target bamboo stand, do not find winter bamboo shoot, then the four point probe 7 of this detector is inserted to entirely buries at this, opening power master switch 5, first by display mode control knob 4, observe the electric current microampere value between Article 1 positive pole probe and negative pole probe on digital display screen 1, after the data stabilization of screen display, press store button 3, data are just retained in single-chip microcomputer; Press same method again, press display mode control knob 4 and store button 3 successively, retain the electric current microampere value between Article 2 positive pole probe and negative pole probe; After repeating this procedure totally three times, just remain the microampere value between first, second and third three positive pole probes and negative pole probe, pre-service terminates, and pulls up detector;
(4) detection and excavation: detector being moved to other should exploration drilling point again, both positive and negative polarity probe (7) is inserted not in soil entirely, three the microampere values surveyed between three positive pole probes and a negative pole probe for three times are divided again by step (3) same procedure, single-chip microcomputer autostore and comparison, as long as if at least one pair of data is than front storage number large 15-30 μ A in rear storage number, then detector sounding or bright light bulletin, represent in the length range between the four point probe 7 in inserted place have winter bamboo shoot, plane soil excavates and get final product.
Said display mode control knob 4 can control digitron display screen display mode.When first time button, display screen display Article 1 branch road and the measurement electric current between Article 1 positive pole probe and negative pole probe; When second time button, electric current measured by display screen display Article 2 branch road; When third time button, electric current measured by display screen display Article 3 branch road.When the 4th button, display screen shows again Article 1 branch road and measures electric current, then circulates successively.
See Fig. 3, these winter bamboo shoot detector feed circuit 8 adopt the rechargeable nickel-metal hydride accumulator of 9V to form, one tunnel exports 9V voltage directly for stake resistance detection circuit 9, and LM7805 Voltage stabilizing module of separately leading up to exports 5V voltage for single chip machine controlling circuit 10 and digital-scroll technique circuit 11 etc.IC
1adopt three terminal regulator 7805, the peripheral cell needed for this device is few, and inside circuit also has the protection circuit of overcurrent, overheated and Correctional tube, and it is reliable, convenient to use, and low price.
See Fig. 3, the core of these winter bamboo shoot detector single chip machine controlling circuit 10 is IC
2chip, this chip is enhancement mode 51 single-chip microcomputer STC12C5A60S2.This single-chip microcomputer is single clock of new generation 8051 single-chip microcomputer that Shenzhen macrocrystalline Science and Technology Ltd. releases, have at a high speed, low-power consumption and the superpower feature such as anti-interference, adopt 5V Power supply, there are 10,8 tunnel A/D interface, 2 road PWM delivery outlets, Flash storage space 56K, static access memory 1280B, programmable read only memory 1K, can complete node tasks scheduling, data acquisition, control signal export, etc. work.C
1and R
4form reset circuit of SCM, when powering on to Program reset, C
1available 10 μ F/25V electrochemical capacitors, R
4use 1K precision resistance.C
2, C
3and CR
1form single-chip microcomputer oscillatory circuit, provide time reference, C
2and C
3available 22pF ceramic disc capacitor, CR
1available 12MHz crystal oscillator.P1.0 to P1.2 pin gathers the current signal in stake resistance detection circuit, because ADC pin can only gather voltage signal, therefore a precision resistance of connecting in each road, current signal is converted to voltage signal, R
1, R
2, R
3all get 1K.P1.6 pin connects TB
1button, realizes display mode and controls; P1.7 pin connects TB
2button, realizes storing control.Single-chip microcomputer P2 mouth connects IC
4i.e. four seven sections LED common anode charactrons, adopt dynamic scan mode real time output data to show count value.
The digital pipe display circuit 11 of these winter bamboo shoot detector is made up of four seven sections of LED common anode charactrons and four positive-negative-positive 9012 triodes.Take turns scan flow group of four figures pipe by control triode break-make and realize dynamic scanning displaying.Font code information is exported by single-chip microcomputer P2 mouth, can realize counting display.
The principle of work of this detector is: according to Ohm law, electric current in same circuit in conductor is directly proportional to the voltage at conductor two ends, be inversely proportional to the resistance of conductor, formula is I=V/R, change one and be expressed as R=V/I, the probe of detector produces stake resistance when inserting leakage current in ground, and its resistance value is the voltage drop of this electric current generation and the business of leakage current.One measure place, medium coefficient and the resistivity of soil are determined, if but there are other foreign material in this sensing point time, as winter bamboo shoot, medium coefficient and resistivity change all to some extent, and resistance changes, and are reflected from the current value change digitron display screen.General fine day and cloudy day, the water content in soil is lower than winter bamboo shoot, and resistance is larger than winter bamboo shoot, if having stone in soil, then because stone density is greater than soil, moisture content is fewer than soil, and the resistance value of stone is larger than soil.Rainy day, limes marginis ground or the soil moisture content in wet depression are high, and detection will be malfunctioning.This detector uses at the fine day of early Febuary in annual late November to next year or cloudy day, and for three groups of four point probes, first glue pipe socket on the probe body cover of four probes except point, to eliminate slotting the impact of friction electricity on current values produced.First insert without bamboo shoot in bamboo grove ground, open total power switch 5, by a display mode control knob 4, now digitron display screen 1 will show Article 1 branch current value, after current measurement data is stable, press store button 3, these data will be kept in single-chip microcomputer.Then press same method and measure storage Article 2 and Article 3 branch current respectively successively.Again the probe 6 of detector is inserted in the bamboo grove ground for surveying winter bamboo shoot, then measure the electric current of storage three branch roads in the same way.After storage, single-chip microcomputer compares respectively by group data of three now with without the three groups of data recorded during bamboo shoot automatically, if wherein at least one data variation scope is greatly to 15-30uA's, acoustical generator or illuminator automatic sounding or luminescence, there are winter bamboo shoot underground in the length range of bulletin between four probes in inserted place, and plane soil excavates and get final product.
Claims (4)
1. a resistance-type winter bamboo shoot detector, be made up of circuit part and hardware components, it is characterized in that circuit part comprises accumulator DC power-supply circuit (8), stake resistance detection circuit (9), single chip machine controlling circuit (10), digital pipe display circuit (11) and acousto-optic bulletin circuit (12); Hardware components has housing (6), the digitron display screen (1) on housing (6), acoustical generator or illuminator (2), store button (3), display mode control knob (4) and battery main switch (5); Positive pole and negative pole probe (7) are equipped with in housing bottom surface; Said accumulator is the rechargeable nickel-metal hydride accumulator of 9V, DC power-supply circuit (8) one tunnel exports 9V voltage and directly connects stake resistance detection circuit (9), and they are by a 9V accumulator, a battery main switch (5), three groups of mutual resistance R in parallel
1-R
3connect successively with positive pole probe, then the negative pole probe be connected with battery terminal negative forms; LM7805 Voltage stabilizing module of separately leading up to exports 5V voltage and is connected with single chip machine controlling circuit (10) and digital-scroll technique circuit (11); Three positive pole probes (7) of described housing (6) bottom surface are arranged on the summit of an equilateral triangle that the length of side is 10-15cm respectively, and a negative pole probe (7) is arranged on this leg-of-mutton central point.
2. resistance-type winter bamboo shoot detector as claimed in claim 1, is characterized in that the length of described positive pole and negative pole probe (7) is 20-50cm, except tip, the diameter of probe body or wide and thick be 0.5-1.0cm, probe overlaps insulating gel pipe box.
3. resistance-type winter bamboo shoot detector as claimed in claim 1, is characterized in that the mutual annexation of described circuit part is: in accumulator DC power-supply circuit (8), 9v direct-flow storage battery is through IC
15V is exported to single chip machine controlling circuit (10) IC after three-terminal voltage-stabilizing
240,20 pins of single-chip microcomputer, three resistance and three positive pole probe one_to_one corresponding series connection in accumulator DC power-supply circuit (8) and stake resistance detection circuit (9), in parallel mutually again, negative pole probe connects power cathode, and three positive pole probes also connect IC respectively
21,2,3 three pin of single-chip microcomputer, store button TB
1, display mode control knob TB
2meet IC respectively
27,8 two pins, crystal oscillator CR
1two ends meet IC respectively
218,19 two pins, and through electric capacity C
2, C
3ground connection, in single chip machine controlling circuit (10), 5V power supply VCC is through electric capacity C
1with resistance R
4ground connection composition reset circuit, meets IC
2pin 9, IC
221-28 pin meet the IC of digital pipe display circuit (11)
311,7,4,2,1,10,5,3 eight pins, IC
217,29,30,11 4 pins connect Q respectively
1, Q
2, Q
3, Q
4the base stage of four triodes, IC
2pin one 0 meet the triode Q of acousto-optic bulletin circuit (12)
5base stage, Q
5collector connect acoustical generator or illuminator, then ground connection, 5V power supply meets triode Q respectively
1-Q
5emitter, wherein IC
1, IC
2and IC
3chip is respectively three terminal regulator LM7805, enhancement mode 51 single-chip microcomputer STC12C5A60S2 and four seven sections of LED common anode charactrons.
4. the winter bamboo shoot detection method of detector as claimed in claim 1, is characterized in that carrying out according to the following steps:
(1) selection of time and weather: be advisable exploration drilling day at the fine day of the early Febuary in annual late November to next year or cloudy day;
(2) selection of bamboo stand and exploration drilling point: select that growing way is more prosperous, bamboo grove that bamboo strain density is larger ground, avoids wetland and the depression on limit, ditch, is advisable exploration drilling point in all the other plot;
(3) pre-service before exploration drilling: first exploration drilling point should uproot or shovel examination and dig at a place of target bamboo stand, do not find winter bamboo shoot, then be inserted to entirely bury at this four point probe by this detector (7), opening power master switch (5), first by display mode control knob (4), observe the upper electric current microampere value between Article 1 positive pole probe and negative pole probe of digital display screen (1), after the data stabilization of screen display, press store button (3), data are just retained in single-chip microcomputer; Press same method again, press display mode control knob (4) and store button (3) successively, retain the electric current microampere value between Article 2 positive pole probe and negative pole probe; After repeating this procedure totally three times, just remain the microampere value between first, second and third three positive pole probes and negative pole probe, pre-service terminates, and pulls up detector;
(4) detection and excavation: detector being moved to other should exploration drilling point again, both positive and negative polarity probe (7) is inserted not in soil entirely, three the microampere values surveyed between three positive pole probes and a negative pole probe for three times are divided again by step (3) same procedure, single-chip microcomputer autostore and comparison, as long as if at least one pair of data is than front storage number large 15-30 μ A in rear storage number, then detector sounding or bright light bulletin, represent in the length range between the four point probe in inserted place have winter bamboo shoot, plane soil excavates and get final product.
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|---|---|---|---|
| CN201210237677.8A CN102788996B (en) | 2012-07-04 | 2012-07-04 | Resistance-type winter bamboo shoot detector and detection method |
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|---|---|---|---|
| CN201210237677.8A CN102788996B (en) | 2012-07-04 | 2012-07-04 | Resistance-type winter bamboo shoot detector and detection method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104635279A (en) * | 2013-11-13 | 2015-05-20 | 浙江农林大学 | Separation type ultrasonic and grounding resistance winter bamboo shoots detector and detecting principle thereof |
| CN104280788A (en) * | 2014-10-20 | 2015-01-14 | 中山市安领星电子科技有限公司 | Metal ore detector |
| CN105676307A (en) * | 2014-11-19 | 2016-06-15 | 章建成 | Exploration device of winter bamboo shoots |
| CN105137490B (en) * | 2015-08-28 | 2018-09-11 | 桂林理工大学 | The method for positioning artificial swamp blocking region based on line power supply power supply and measuring technique |
| CN107085242A (en) * | 2017-05-31 | 2017-08-22 | 浙江大学 | A kind of contactless winter bamboo shoot detection device and method |
| CN114324487B (en) * | 2022-03-16 | 2022-05-27 | 水利部交通运输部国家能源局南京水利科学研究院 | Direct current method-based foundation compaction in-situ detection device and method |
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| CN1821810A (en) * | 2006-03-24 | 2006-08-23 | 黄委会水科院高新工程技术研究开发中心 | Detecting method for bunching DC resistivity |
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